(19)
(11) EP 4 548 969 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.06.2025 Bulletin 2025/23

(43) Date of publication A2:
07.05.2025 Bulletin 2025/19

(21) Application number: 25165556.9

(22) Date of filing: 16.07.2022
(51) International Patent Classification (IPC): 
A61N 7/02(2006.01)
(52) Cooperative Patent Classification (CPC):
A61N 2007/0043; A61B 2018/00023; A61B 2018/00285; A61B 2018/00434; A61B 2018/00511; A61B 2018/00404; A61B 2018/00577; A61N 2007/003; A61N 7/022; A61B 2018/00744; A61M 2025/1068; A61B 2017/22068
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 19.07.2021 US 202163223517 P
27.06.2022 US 202263367119 P
15.07.2022 US 202217812884

(62) Application number of the earlier application in accordance with Art. 76 EPC:
22748463.1 / 4373572

(71) Applicant: Otsuka Medical Devices Co., Ltd.
Tokyo 101-0048 (JP)

(72) Inventors:
  • MAZZONE, James
    Palo Alto, CA 94303 (US)
  • DAILEY, Eric
    Palo Alto, CA 94303 (US)
  • DONOVAN, Ryan R
    Palo Alto, CA 94303 (US)
  • MERINO, Jamie
    Palo Alto, CA 94303 (US)
  • THIRUMALAI, Shruthi
    Palo Alto, CA 94303 (US)

(74) Representative: Barker Brettell Sweden AB 
Kungsbroplan 3
112 27 Stockholm
112 27 Stockholm (SE)

   


(54) CATHETER HAVING COMPLIANT BALLOON


(57) A catheter (102), comprising a catheter shaft (212) having inlet and outlet fluid channels (403, 405), an ultrasound transducer (214) and a compliant balloon (108) mounted on the catheter shaft (212) and having an interior (504) in fluid communication with the fluid channels (403, 404) and containing the ultrasound transducer (214). The compliant balloon (108) is inflated to a predetermined inflation pressure according to an arterial limiting approach regardless of a vessel lumen diameter (320), the nominal diameter of the compliant balloon is 8 mm and the predetermined inflation pressure is 10 psi or less. The compliant balloon (108) includes a balloon wall (502) having a working section (1600) with a predetermined straightness that includes a cylindricity less than a predetermined threshold.







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Search report